/*******************************************************************************
 * Copyright (c) 2006 CEA List.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     CEA List - initial API and implementation
 *******************************************************************************/
package com.cea.papyrus.tabbedproperties.section;

import org.eclipse.jface.viewers.ISelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CLabel;
import org.eclipse.swt.events.FocusEvent;
import org.eclipse.swt.events.FocusListener;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.views.properties.tabbed.ITabbedPropertyConstants;
import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage;
import org.eclipse.uml2.uml.Comment;

import com.cea.papyrus.core.tabbedproperties.PropertyViewSection;

/**
 * 
 */
public class CommentBodySection extends PropertyViewSection {

	/**
	 * 
	 */
	private Text body = null;
	
	/**
	 * 
	 */
	private FocusListener bodyListener;

	/**
	 * 
	 * 
	 * @param tabbedPropertySheetPage 
	 * @param parent 
	 */
	@Override
	public void createControls(Composite parent,
			TabbedPropertySheetPage tabbedPropertySheetPage) {
		super.createControls(parent, tabbedPropertySheetPage);
		Composite composite = getWidgetFactory()
		.createFlatFormComposite(parent);
		FormData data;

		body = getWidgetFactory().createText(composite, "", SWT.V_SCROLL); 
		body.setEditable(true);
		data = new FormData();
		data.left = new FormAttachment(0, STANDARD_LABEL_WIDTH);
		data.right = new FormAttachment(100, 0);
		data.top = new FormAttachment(0, 0);
		data.bottom = new FormAttachment(0, 100);
		body.setLayoutData(data);
		body.addFocusListener(bodyListener = new FocusListener() {
			public void focusGained(FocusEvent e){
			}
			public void focusLost(FocusEvent e){
				if(getElement() != null) {
					((Comment)getElement()).setBody(body.getText().trim());
				}

			}
		});


		CLabel overviewLabel = getWidgetFactory().createCLabel(composite, "Body:"); //$NON-NLS-1$
		data = new FormData();
		data.left = new FormAttachment(0, 0);
		data.right = new FormAttachment(body,
				-ITabbedPropertyConstants.HSPACE);
		data.top = new FormAttachment(body, 0, SWT.TOP);
		overviewLabel.setLayoutData(data);
	}



	/*
	 * @see org.eclipse.ui.views.properties.tabbed.view.ITabbedPropertySection#refresh()
	 */
	/**
	 * 
	 */
	@Override
	public void refresh() {
		if (!body.isDisposed()){
			if (getElement() instanceof Comment) {
				body.setText(((Comment)getElement()).getBody());
			}
		}
	}
	
	/**
	 * 
	 * 
	 * @param part 
	 * @param selection 
	 */
	@Override
	public void setInput(IWorkbenchPart part, ISelection selection) {
		super.setInput(part, selection);
	}

	/*
	 * (non-Javadoc)
	 * @see com.cea.papyrus.core.ui.properties.tabbed.PropertyViewSection#dispose()
	 */
	/**
	 * 
	 */
	public void dispose(){
		super.dispose();
		if(body!=null && !body.isDisposed())
			body.removeFocusListener(bodyListener);
	}
}
